Verge X20

Human-Powered Flight

Some people just like to go fast, really fast. If that’s what gets you going, we’ve got your bike — in a nice portable package so you can get your speed fix no matter where you are.

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N-Fold Technology

The Faster Fold

Folding bicycle design hasn’t changed much in decades. N-Fold Technology is a small but important change that results in a faster, and more compact fold. N-Fold Technology includes new frame and handlepost geometries and spins the front wheel by 180 degrees before the central fold, resulting in a package 40 mm (1.5") shorter. Using N-Fold technology, our Eclipse and Castro bikes are only very slightly larger than the typical small wheel folding bicycle. Bicycles with N-Fold technology can also be folded – easily – in less than ten seconds.

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OCL Joint

Stronger, Better, State of the Art

The OCL Joint is a new reference in folding frame technology. It includes two new patents and everything we know about making the safest, strongest, and most durable frame joint.

  • Taller, Stronger, Stiffer — Making the hinge taller and moving the pivoting surfaces outward from the center axis more than doubles overall strength and stiffness and it’s a difference you’ll feel from your very first ride.

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DoubleTruss

3-D = Stronger

Folding bikes have a sometimes deserved reputation for flexy frames. All Tern frames feature patented DoubleTruss technology which turns the rear half of the frame into a three dimensional truss so that it’s much more resistant to torsional forces. That equals increased stiffness and much better power transfer from the pedals to the rear wheel.

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Smooth TIG Welding

Beauty Meets Function

The normal TIG welding process for aluminum bicycle frames is done by hand and involves the welder laying down a series of small, overlapping beads covering the two parts to be joined. The better the welder, the more uniform the beads. In the smooth TIG process, the welder makes a “double pass”, laying down a second layer of beads on top of the first. These beads are then sanded down by hand in an intensive process that requires extreme care. Done properly, the frame is strengthened because the possibility of stress risers is reduced. And the result is a very smooth weld joining the two tubes.

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Igus Bearings

Smooth Operator

When we find a way to make our frame and handlepost hinges better, sometimes we get a little crazy. That’s what happened when one of our friends suggested we have a look at Igus bearings. Igus says they are in business “to use its innovative polymer materials to develop products that provide creative solutions.” Man are they right. This ultra durable engineering plastic is amazing. No rusting. No grease required. Amazing durability. We now use super smooth Igus bearings in FBL 2.0, Physis and OCL joints. We make bikes to last long, designed for easy maintenance.

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Physis 3D Handlepost

3D-Forged = Even Stronger, Stiffer, Better Ride

The Physis has quickly built a reputation as the stiffest folding handlepost on the market, but the Physis 3D takes it up a notch with 3D forging technology. The Physis 3D is forged from a single piece of aluminum. Only a small handful of factories around the world can 3D forge such a complicated, large piece. Welds are eliminated and material distribution optimized for strength. The result is a handlepost that is 2 1/2 times as strong as the original benchmark on rigorous EN tests.

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Syntace VRO 47 Stem

Fitted to You

The VRO 47 stem gives you all-important adjustability so you can fine-tune your riding position for speed or comfort. The stem is 47 mm long (14 mm longer than the standard VRO) and it’ll go anywhere from -45 degrees to +90 degrees or even backwards if you want to reduce the reach. And it exceeds Syntace’s brutal in-house test procedures for downhill gear. Custom-built for Tern.

Syntace is a German company renowned for their incredibly light but amazingly strong stems and bars.

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Stasis Seatpost by Syntace

Ultra-light, ultra-tough

The Syntace P6 is one of the strongest and precisely engineered seatposts on the market. We wanted the best so we worked with Syntace to develop a 580 mm seat post with a variation of their 3D cold-forged P6 clamp. Made from ultra-light 7075 aluminum and hard-anodized (black color option) for scratch resistance. ERS technology delivers loads of fore/aft adjustment for the saddle: you can run the saddle forward for zero offset stiffness, or all the way back like an offset seatpost. Two bolt micro adjust for infinite angle adjustment.

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Kinetix Pro Wheels

Ultra-light, fast, aero

We wanted some really light, fast 20” wheels so we worked with Rolf Dietrich, one of the industries’ foremost experts on bicycle wheels, to develop this pair. Rolf was demanding: custom spokes from Sapim in Belgium, custom hubs from Bill Shook and American Classic, custom rims from one of the premier Taiwan factories where you can’t even go in the back room. Hand-laced and stressed with a custom spoke stress machine. Through three cycles. And spoke tensions measured only with a DT Swiss tensiometer. Seriously –- Rolf even specified the brand of tensiometer.

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FSA Mega Double Crankset

Built for Our bikes

If you have a bike with small wheels, you have to work a little harder to get good gearing; you can’t just slap a 53/39 crankset and 12/25 cassette on a small-wheeled bike, the gearing will be too low. Our friends at FSA supply us with custom 55/42 cranksets and we pair them with wider 11/28 or 11/30 cassettes so you get a wider gear range and fewer overlapping gears.

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SRAM Red Drivetrain

The Best

SRAM Red represents the pinnacle of bicycle drivetrain technology. Every component has been rethought and optimized for a single purpose – performance. Materials used include carbon, titanium, magnesium, stainless steel, and precision-forged aluminum. Our favorite component? It’s a toss up between the amazing DoubleTap shifters and the Power Dome cassette which is machined from a solid block of steel alloy so you get amazing durability with out-of-this-world weight.

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Luggage Socket

Carry More Stuff

When you need to carry more stuff on your bike, just plug the optional Luggage Truss into the Luggage Socket that’s welded to the head tube of every Tern bike. The Luggage Truss works with any bag, basket, or rack with a KLICKfix adapter. The benefit of a frame mounted luggage system (as opposed to fork or handlebar mounted) is that it doesn’t adversely affect steering.

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Tern Tail Masked Paint

Super-fine Details

Getting this finish just right needed a LOT of work with our paint factory. It basically involves incredibly meticulous hand-masking to achieve the final result. With the silver/black finish, we hand-polish the aluminum frame to a mirror finish and then follow that with hand-masked black paint. Detail: the shape of a Tern’s tail is echoed in the paint masking.

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Specifications

General Info
Color: (Black/Red)
Wheel Size: 20 inch wheels
Speeds: 20
Weight: 9.3 kg (20.5 lb)
Folding Time: 10 sec
Folding Size: 38 x 79 x 72 cm (15" x 31.1" x 28.3")
Frame Sizes: One size
Gear Inches: 28" - 93"
Distance: Seatpost to Handlebar: Min: 540 mm (21.2") Max: 680 mm (26.8")
Distance: Saddle to Pedal: Min: 660 mm (26") Max: 930 mm (36.6")
Suggested Rider Height: 142 - 190 cm (4'8" - 6'3")
Max Rider Weight: 110 kg (243 lb)
Miscellaneous
Bell: Aluminum
Frame
Frame: Verge, hydroformed 7005-Al w/ smooth TIG welding, patented OCL Joint and DoubleTruss technology, Igus bearings
Fork: Aluminum 6061
Cockpit
Handlepost: Physis 3D, Igus bearings, 4 patented technologies
Stem: Syntace VRO
Headset: Flux Pro, angular contact cartridge bearings, dual-seal technology, machined aluminum cups
Handlebar: Kinetix Pro, double-butted 7050-AL, for VRO
Grip/Bars Tape: Ergon GS2 Leichtbau
Saddle: Kore Road Performance, SL foam, hollow cro-mo rails
Seatpost: Stasis by Syntace, 7050-AL, hard-anodized
Seatpost Clamp: Syntace OverLock
Brakes
Front Brake: Kinetix Pro, Ashima Aero CNC cartridge brake shoes
Rear Brake: Kinetix Pro, Ashima Aero CNC cartridge brake shoes
Brake Levers: Avid Speed Dial 7
Brake Cable & Housing: LiveWire 7.0, anti-compression housing, slick cables, DuPont L3 lubricant, alloy ferrules
Wheels
Front Hub: Kinetix Pro by American Classic, stainless steel cartridge bearings, ultralight 58 gram design
Rear Hub: Kinetix Pro by American Classic, stainless steel cartridge bearings, ultralight 205 gram design
Spokes and Nipples: Kinetix Pro by Sapim, super-light, double-butted, Polyax nipples
Rims: Kinetix Pro, matte anodized finish, laser-etched graphics
Tires: Schwalbe Durano, 28-406, foldable Kevlar bead, Dual Compound Silica casing, RaceGuard anti-puncture protection, 120 psi
Transmission
Shifter(s): SRAM DoubleTap, 2 x 10
Front Derailleur: SRAM RED, YAW Technology
Rear Derailleur: SRAM RED
Crankset: FSA SL-K custom for Tern, carbon, 55/42T MegaExo
Cassette/Freewheel: SRAM RED, 11-28T
Bottom Bracket: FSA MegaExo
Chain: KMC X10L
Shifter Cable & Housing: LiveWire 8.0, sealed alloy ferrules, DuPont L3 lubricant
Extras
Clip System: Magnetix 2.0
Luggage Socket: Yes
Rear Light: BioLogic TailLight
SFGate.com
December 6, 2013

"I rode one of their higher end models (the Verge x20) through the cities and countryside of Denmark, where it cruised smoothly on long distance road trips, accelerated briskly up hills, was agile in city traffic and took less time to fold than it takes me to tie my shoes."

Read the full article online here.

bicinews.net
September 1, 2013

"Ad alcune persone piace semplicemente andare veloce, molto veloce. Con questo obiettivo Tern Bicycles ha progettato la bicicletta pieghevole Verge X20, una bici in formato portatile, che rappresenta l’evoluzione del trasporto urbano e offre la migliore soluzione per una mobilità ecosostenibile. Facile e maneggevole, ma garantita da una qualità senza compromessi abbinata ad un design innovativo."

["Some people like to ride fast, very fast. For those, Tern has developed the Verge X20, a portable bike which represents the best solution for urban mobility today. Light and convenient to handle, this bike combines uncompromising quality and innovative design."

Read the full article online here.

BikeRadar.com
March 31, 2013

"The Verge X10 is an awfully quick little rig, scooting forward with each pedal stroke and maintaining a healthy clip in an efficient-feeling manner that's more befitting of a mid-ranged road bike than something intended for commuting. Perhaps most telling is the fact that we often grabbed the Verge X10 if we were running late for something (which was pretty much always)."

Read the full article online here.

BikeRadar.com
January 16, 2013

"The Verge Duo seeks to marry performance, low maintenance and sleek lines, and does so extremely well. Tern have redesigned certain aspects of the frame to make them stiffer while making the fold even quicker. We were particularly impressed with the extremely strong and stiff Physis handlepost joint. The result is a bike that folds to a reasonably small size (easily little enough to pop in a train luggage rack) but is a blast for quick rides around town."

Read the full review of the Verge Duo online here.

Folding Bikes
December 13, 2012

"Like all the folding bikes in the Tern Verge Series, the Verge X20 is exceptional, a show-piece and speed demon wrapped in one. So far I have taken it on three semi-major rides and the attention it gets is hard to miss. I’m glad I can take it in with me wherever I go, because those looks of jealousy might turn on me."

Read the full article about the Verge X20 here.

BaikBike.com
December 7, 2012

"What surprised me the most, was the Kinetix pro wheelset and the stock-standard Schwalbe Durano tires. I’ve underestimated them, thinking that it was flimsy and unable to take my weight. With a Godzilla-sized rider like me, the rims and tires were able to withstand our harsh road conditions. Not only that, its capable of yielding 25km/h on the average with little effort. So, imagine if you are really fit and have the power to weight ratio. This bike will fly!"

Read the full article online here.

Men's Journal
December 1, 2012

"Setup couldn't be simpler: Flip a lever to unfasten the main body and fold the bike in half, flip a level on the handlebars to fold those down, push in the pedals, and lower the seat . . . the Verge Duo was a comfortable breeze to drive around bumpy, hill-heavy Brooklyn bike paths. Finally, at less than $1,000, it's a steal when compared with its pricier U.K.-built competitors."

Read the complete article online here.

Velo Speak
November 27, 2012

"The X20 really moves, thanks in large part to its light weight (21 lbs.), the top of the range SRAM Red drivetrain, and the specially sourced FSA crankset with custom 55/42 gearing. The handling is precise, and given the 20″ Kinetix Pro wheels, incredibly agile. It feels as if this bike has an upper hand in terms of maneuvering due to its compact size. This translates into smiles for me, and I’m quite sure I had an ear to ear grin each time I rode the bike."

Read the full article online here.

Commute by Bike
June 27, 2012

"The hub tended to shift just when I would have shifted manually . . . DC is a relatively flat city, so I never experienced a disagreement with the bike about what gear it should be in."

Watch the video online here.

KLEINE ZEITUNG
May 11, 2012

"Brompton bietet pfiffige Extras und tolle Farben, Dahon und Tern haben top Sondermodelle im Programm."

Read the full article online here.